George s



' (No Model.)

G. S. PAULKNER & G. K. POPE.

GAS PRESSURE REGULATOR AND GUT-OFF.

N0. 369,445. Patented Sept. 6, 1887.

UNITED STATES PATENT Grains.

GEORGE S. FAULKNER AND GEORGE K. POPE, OF INDIANAPOLIS, INDIANA.

GAS PRESSURE-REGULATOR AND GUT OFF.

SPECIFICATION forming part of Letters Patent No. 369,445, dated Septemb r 6, 1867.

Application iilod May 20, 1887. Serial No. 235 .842.

(No model.)

To all whom it may concern.-

Be it known that we, GEORGE S. FAULKNER and GEORGE K. Porn, States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improvement in Gas Pressure-Regulators and Gut-Offs, of which the following is a specification.

Our invention relates to an improved gas pressurc-regulator and cut-oil, designed, principally, for use in connection with natural-gassupply systems. 7

The objects of our invention are, first, to so control the flow of gas from the mains to the consumers system of supply-pipes thata uniform pressure will be maintained therein under ordinary conditions of use, and, second, to automatically shut off the supply of gas when a serious break in the consumers system of pipes occurs, as in case of the burning or falling of the building, or when, on account of a checked flow of gas at the source of-sup ply or from breakage of the mains, the press- 11 re falls below the point necessary to sustain combustion, thereby preventing the flooding of houses and factories with gas when the normal flow is resumed.

The accompanying drawings illustrate our invention.

Figure 1 represents a side elevation, and Fig. 2 a vertical section. at a, Fi 2.

A is a tubular: valvechamber, which is mounted vertically on the base B. The opposite ends of the valve-chamber are provided with the opposed interior valve-seats, c and d,

"hich are removably secured to the valvechamber and are perforated centrally to allow the gas to pass through them.

E is a double-faced valve arranged to engage either of the valve-seats and supported cen trally in the valve-chamber by the guides e and f and extended to form the valve-rod g.

F is the inletpipe leading from the main and secured to the lower end of the valvechamber.

G is the outlet or consumers supply-pipe, which is connected with the upper end of the waive-chamber by a T-coupling, h.

I is the pressure-chamber, which is secured citizens of the United Fig. 3 is a sect-ion to the upper branch of coupling h, and has an elastic diaphragm, j, extending'across it. The valve-rod g is connected to the diaphragm by means of rod 1, which is made in two sections which embrace the washers m and n and the 5 diaphragm between them. Rod Z is loosely coupled with the upper end of the valve-rod, as at 0, so as to allow a certain degree of flexibility which permits the valves to seat truly and perfectly, ure'chamber sufficiently to receive and support a series of weights, 1 2 3. The weights and the upper part of the rod Z are protected from unwarranted interference by an incloslug-case, It.

The valve-rod is of smaller diameter than the perforation through the valve'scat 0, so as to leave an annular space, 8, through which the gas may pass from the valve chamber to the pressure-chamber.

The operation of our device is as follows: Pipe F having been connected with the main and all outlets from pipe G being closed, and one or more of the weights 1 2 3 being in poand it extends above the presssition on the rod Z, the lower face of valve E rests in the valve seat 11, and no gas enters the regulator until the valve has been raised by hand. The valve having been raised, the gas passes through the valvechamber A and annular space 8 to the pressure-chamber I,where, so

the extended area of the diaphragm, it operates to sustain the weights, thereby holding the valve open. The weights being adjusted to the pressure required, so long as the desired amount of pressure exists in chamber I the weights and the valve are held in a balanced position, the valve being about equidistant from the two seats 0 and d. If there is any considerable increase of pressby its pressure on ure in the main or source of supply, then the go diaphragm and weights are forced upward, thus drawing the valve upward against seat 0 and cutting off the supply until the pressure in chamber I has become normal again, when the valve falls and the flow of gas is resumed.

If, however, a great reduction of pressure occurs in chamber I, such as would result from the breaking of the outlet-pipe G or a stoppage of the gas at the well or other source of 1 supply, the valve will fall till it rests in seat (I, and the gas will not again enter the consumers system of pipes until the valve has been raised by hand.

It is in some places undesirable to allow the d 5 flow of gas to be completely out off when the pressure from the source of supply ceases. For the purpose of controlling this we pivot to the bottom of the case It, on the inside, a thin plate, u, one end of which may be turned so as to come between a collar, 0, on the rod Z and the bottom of the case, as shown in dotted lines, Figs. 2 and 3, or turned out of the way, asshown in full lines. WVhen turned under the collar, plate it operates to arrest the :5 downward movement of the rod and prevents the complete seating of the valve in seat cl, so

that when the pressure again returns in the main the flow ofgas is automatically resumed through the regulator. A pressure-regulator and cut-01f is thus formed which has but few parts, and in which the use of springs and stufliug-boxes is avoided.

We claim as our invention- 1. In a gas pressure-regulator and out off, a 2 valve-chamber, an inlet-pipe secured to one end of said valve-chamber, a pressure-chamber secured to the opposite end of the valvechamber and having an outlet leading therefrom, a pair of perforated valve-seats secured in the opposite ends of the valvechamber and arranged to establish communication between the valve-chamber and inlet-pipe and the valve-chamber and pressure-chamber, respectgage with either of said valve-seats and to thereby cut off communication between the inlet-pipe and the valve-chamber or between the valve-chamber and the pressure-chamber, an elastic diaphragm forming'one side of the pressure-chamber, a rod connecting said valve and diaphragm and extending above the diaphragm, andremovable weights arranged to resist the pressure on the .diaphragm and to depress the valve, all combined and arranged to cooperate, substantially as and for the purpose specified.

2. In a gas pressure-regulator and cut-off, the combination, with the valve-chamber having seat (1, the valve arranged to engage said seat, and the rod Z, connected with the valve and having collar v, of the plate 20, arranged to intercept the downward movement of the rod and to thereby prevent the complete closing of the valve upon its seat, substantially as and for the purpose specified.

GEORGE S. FAULKNER. GEORGE K. POPE. WVitnesses:

H. .P. Hoop, FRED. YEATON.

'ively, a double-faced valve arranged to en- 

